Soil, wood, oil. minerals, petroleum, water are considered natural
resources because they occur in their natural form and are not made by
Humans can only modify natural resources. The energy that makes
natural resources comes from geochemical, geophysical and solar energy.
The exploitation of nature and natural resources can be dated
back to the advent of humankind and the very start of civilization.
Earlier people used to cut trees for fuel, for building materials for
boats and for shelter. There are two kinds of natural resources-
renewable and nonrenewable.
Wood which is one of the main natural resources has the advantage
of being renewable. Fish, animals and forests can renew themselves if
they are not over-harvested. Forests can be replanted and, in time, the
wood that was used can be replaced.
However in recent times, we have been witnessing the cutting down
of trees at alarming rates. In cities it is becoming, increasing
see a green patch. If we do not replace these trees at
the same speed as we are using them then very soon this resource will be
expended. The cutting of trees also results in loss of ecosystems and
soil erosion, and less rainfall. When fossil fuels were discovered they
momentarily took the pressure off wood.